Conveyer for metal bars.



Wo. 849,122. A v PATENTED APR. 2, 1907.4

- J. R. GEORGE.

CONVEYBR FOR METAL BARS.

APPLICATION FILED sEPT.19, 1905.

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JEROME n. GEOeGE, or WORCESTER; MASSACHUSETTS, ASSiGxon To Moit- GAN CONSTRUCTioN COMPANY or WORCESTER, MASSACHUSETTS, A

CORPORATION OF MASSACHUSETTS.

CGNVEYER FQR METAL jBAFic..

Specication of Letters Patent.

latented April 19Q7.

Appnmion ned September'le, 1905. Serin No. 279.136.

` Commonwealth of Massachusetts, have in-- vented a new and useful Improvement in Conveyors for Metal Bars, of which the following is a specification accompanied,l by

drawings, forming a part of the same, in,

1 o which- Figure 1 represents a plan viewiofa' cone' veyer embodying my invention. side elevation. forms of feeding metal hars to the conveying x 5 mechanism, and Fig. 5 shows a form' of Con? struction of my improved Conveyor by which' metal barsrnay be transferred from one elevation to another, and Figs. 6, 7, and 8 represent 'a top and two end views showing means 2o for decreasing the longitudinal speed of a bar on the conical conveyer-rolls.

Similar reference letters and figures refer to similar parts in the different views. My invention relates to a Conveying mee'h- 2 5 anism for transferring metal bars from one position to another, either in the Same plane or in difl'eront planes; and it Consists in the employment of rotating screw-threaded oonveyer-shafts upon which the hars are sup- 30 ported, with means for feeding the bars upon the screw-threaded Shafts.

It further consists in providing means for limiting the endwisemovement of the hars igs. 3 and 4 Show modified l longer shafts 1, 2, and 3 have their opposite and in Cert-ain novel features of construction 3 5 and arrangement of parts, as hereinafter described, and claims.

Referring to Figs. 1 and 2 of the drawings,

insertion of the short sorew-threaded shafts 7 and S, whirh are likewise rotated from the shaft G, All the screw-threarled oonveyer- 5o shafts are jonrnaled at one end in suitable bearings in a framework Q. The shorter shafts 7 and S are journaled at their opposite ends in bearings. 10 and 11.

pointed out in the annexed..V

ends supported upon a pair'ol' friction-rolls 12. Between the ends of the screw-threads I place a series of Conveyer-rolls 13, having their up )er surfaces lying in a plane slightly above tile tops of Athe Screw-threaded Conveyer-shafts, so that a bar 14 as it rests upon the to of the eonveyer-rolls 13 may be pushe .by reciprocating pushers 15 from the oonveyer -rolls upon the screw-threaded shafts. .The reciprocating pushers 15 are operatively Connected by links 16 with any suitable .actuating mechanism (not Shown) wherebyfthey-may be moved haelt and forth in their bearings to transfer metal bars from theeonve'yer-rolls 13 to the Screw-threaded eonveyer-Shaio ts. The eonveyer-rolls 13 have a geared Connection with the driving-Shaft 17', by which they are rotated in the proper direction to move the metal 1oar 14 longitudina'lly in the Adirection of the arrow 18. At one side of the conveying mechanism l. place a stop-plate 19, by which the longitudinal movement of the bar 14 is Checked. y AS the bars are transferred upon the rot-al ing screwthreaded oonveyer-shafts a sidewise movement will be imparted to the bars in the direction of the arrows 20 until the bars have reached the opposite ends of the conveyershafts, where they will be delivered upon ta Series of conveyor-rollsI 21, having a geared connection with a driving-slaaf t 22, by Vwhich the hars are moved longitudinally and delivered from my improved Conveying mechamsm.

when the metal bars are heated and'theregfore vmore duotile I support the bars at 1, 2, and 3 denoto'r-rew-tlireaded oonveyerf lach of the frequent intervals by the insertion of the short Conveyor-shafts 7 and S; but as the bars areoooled during their process across the Conveyer theybecome sufficiently stiffened to Support their weight across the wider spaces between the longer Conveyershafts 1, 2, and 3.

The ao tion of the sci'eiwtlirearled Conveyor` shaftsP not only moves the metal bars with a Slow side'wise movement from one end of the oonveyer to the other, but they also tend to impart a longitudinal movement to the metal bars to Carry them against and hold them' in Contact with a Stop-plato 19. In order that this tendency to longitudinal IOO movementof the hars on the screw-thrcaded f shafts may not he unduly greet, lY prel'er to construct n portion ci the screw-tlireaded y conveyor-shafts with reverse screw-threads, as illustrated in Fig. l, in which shalts 2, il, and .7 ere provided with lelitliand screwH threads, which when the shafts are rotated to the ,right will move the metal hars toward the opposite ends ot' the shalts and also to- Ward'the stop-plate 19, while the .screw-1 threaded shafts 1 and S have rightfhand screw-threads, which counteract the tendency to longitudinal movement ol' the hars.

ln Figs. l and 2 the hars' are led longihe supported thereon without any tendency to sidewise movement until it is ,pushed troni the conveyer-roll 23 to the screnvythreaded shaft 2G-hy a reciprocating pusher 27 In Fig. 3 the conical conveyor-roll Z8 is represented with its upper or supporting` surface Z9 inclined suiiiciently to cause a metal har il() to he moved hy gravity otl the conveyerfroll 28 upon the screw-threaded conveyor-shaft 31. During the longitudinal movement of the har Il() upon the conveyerroll 28 it is held from sidcwisc movement h v gravity by ineens of a radial arm 32 on a. huh .33, Which-is held in proper position. hy hond or otherwise to prevent the sidewise movement of the har'SO until the proper time arrives for the delivery of the har 3() upon the screw-threaded eonveyenshaft 3l, when i to provide'supporting the huh 33 is rotated in the direction ot the arrow 34 to remove the retaining radial arm 32 and bring the next radial erm ,S5 in proper position to retain the succeeding metal har.

ln Figs. 1 and 2 the aires oi' the screwthroaded conveyor-shafts are arranged in a horizontal plane, and the metal hars SG resting thereon lie in the angle termed hy thel screwthreads and are treiist'erred by the spiral action of the. screw-threads from one end. of the conveyor-shafts to thc other.

ln Fig, 5 I have shown a modification which consists in arranging' the axes of the screv-thresded conveyer-shntts Se at an oblique angle to a i'iorizontal plone and changinggithe. torni of the screw-threads 37 sides 3S, adapted to hold they metal hars 3) against gravity as they ere'lieing moved toward the upper ond ot' the screw-threeded conveyor-shaft. v 'lhe inclined co'nveyer-sliai't 36 is journaled at with the delivery-end of threaded Conveersliatts 36,

they are delivered to rotating.Y convcyer-rolls e rolls -l in the same manner as the horizontal shahs l, 2, and il are supported.v The hars :ire led to tht` conveyor hy a longitudinal movement upon rotating coi1veyer-rolls 43, from which they are pushed upon the screwfrom which 44. With a screw-threaded oonveyensheft like that shown at Sti, having screw-threads 37, it will he ohviousithnt metal hars when once loaded upon the screw-threads 37 can he moved upwardly by the rotation o't the.

shatts in one direction or downwardly hy` the rotation of the shafts in the opposite direction, allowing the metal hars to he lowered from a lower to a higher plane, or vice versa` When the metal hars are supported upon a series ot screw-threaded conveven shefts, euch har rests h v gravity against two sides ot: ndjnccnt screw-threads, and the sidesot' the several screw-threads supporting the har lie in the same plano the weight ot the har when in a. heated and ductile condition tends to bring the har into alinenle'nt With the sides ot" the screw-tln'end, and therefore straighten it. l

Fig'. oropresents a top View, and Fig, 7 an end view, of one end of my improved conveyor, in which the conical conveyor-rolls are plneed, as in Fig. 3, with their upper or Y supporting,l surfaces 46 inclined to cause a metal har' to he moved hy gravity otl' the conveyer-rolls i5 upon the screw-threaded conveyer-slnilts 47, with the stopplatc 19 in position to limit the lonnitudinalinovement of' a metal har. ln Figs. 6 and 7, however, l have shown means for gradually decreasing the speed of the metal har as it approaches the stop-plate, consisting;l ot' a rocking' shaft 48, journaled*above the conical conveyorrolls 45 and having; a radial hlndc 4 9 eXtend-.

ingI downward in proximity to the supportingsurlaee 4G of the eonvcyer-rolls and serving; as a stop tor the metal har to prevent it tron* heine; moved hy gravity oli the inclined surface of the rolls. The rocking shaft 45 is rocked hy an y suitahle means-Ain the present instance hy means of n. lever-handle 50, which is raised or lowered to change the position oi' the olado 49. As the metal har 51 enters npon the conical conveyor-roll the handle 50 is raised. to bring the hlade 49 in position to vhold the har near the larger ends ot the con ical rolls, Where the surface speed of the rolly is the greatest. As the metal approaches th stop-plate 19, the handle 5() is lowcrednrovlf ing' the radial blade toward the smaller the conical rolls, when the surface speen` the roll is lessened, therehy reducing tnl spor-dot the metal loer es it comes into con, tact with. the stop-plate. l'urt her depression of the handle 50 allows the mctnl har to IOC pass off the conical rolls upon the screvvthreaded conveyer-shafts 7 when the handle is raised to restore the blade 49 to itsv original position to receive the-succeeding metal har. .ln Fig. 8 the same result is ac eomplished b v a. revolving shaft 52, having a series of radial blades 53 suitably spaced, i'vhereby as a metal bar is being delivered from the rolls past one of the blades the succeeding bar will be retained by the nextsucceeding blade, allowing theI shaft 52 to be intermittently rotated in the same direction.

shafts.

2. A eonveyer 'for metal bars, consisting of a series of screw-threaded rotating shafts, and a series of independently-ilriven conveyer-rol-ls arranged to support a metal bar o posite the ends of said screw-threaded s iafts and ina pla-ne above the upper or supporting surfaces of said shafts. v

3. A conveyer for metal bars, consisting of a series of screw-threaded shafts, a series of independently driven conveyer rolls arranged to support a metal bar opposite the ends of said screw-threaded' shafts, and means for transferring a metal bar from said conveyor-rolls to said screwthreaded shafts.

4. ln a conveyer for inetal bars, the oombinationv with a series of rotating screwthreaded shafts, of rot-ating rolls interposed between said shafts.

5. .ln a eonveyer for metal bars, the combination of a. series ol screw-threznled rotating bars, and means l'or feeding a metal bar upon said shafts by a.v sidewise movement of -lhe bar over the ends of the shafts.'

t3. ln a conveyor Vl'or metal bars, the cornbination of a seriesof rotating shafts having screw threaded Sections, eoniea-l rota-ting rolls, and means lxrdelivering a metal bar :'--rl'rom said rolls to the screw-thI'eaded sections ol` said shal'ts.

7. l-na eonveyer lor metal bars, the coinbmation of a. series ol' rolating`serewthreaded shafts lying in the saine plane, With the delivery ends of saidshafts the highest, and With the shape of said screw-threads adapted to hold a metal bar against gravity acting in a direction at an oblique anglo to the axes of s'aid shafts, and means for .feeding a metal bar transversely to said shafts and into contact with the screw-threads.

8. In a conveyor for metal bars-fthe cornbination of a series of parallel shafts lying in the same plane, a portion of said shafts having a right-hand and a portion left-hand screw-threads.

9. In a e'onveyer for metal bars, the oombination of a series of screnthreaded shafts having parallel axes lying in the same planeand adapted to hold a nietalbar lying transversely thereon, meansfor feding a bar L lpon the receiving ends of said shafts; and shorter scre\\threadeal shafts interposed between the receiving ends of the longer shafts.

10. `In a oonveyer for metal bars, the combination of a screwtlireaded shaft jonrnaled at one end in a bearing, and a pair ofrolls arranged to support the opposite end of, said shaft. lf Y 11. In a eonveyer for metal bars, the coinbination of a series of screw-threaded shafts, means for simnltaneonslyn rotating said shafts, a series of conical conveyer-olls having their supporting-surfaces inclined to allow ..a met-al bar to pass' by gravity upon said screw-threaded shafts, of means for varying the position of a metal bar on said conical rolls, whereby the longitudinal movement of. v

the. metal bar is varied in speed. v 12. ln a vconveyer for metal bars, the oombination of a series of rotating corneal conveyer-rolls for imp arting a longitudinal movcment to' a metal bar, having their supporting 'surfaces inclined, a stop-plate for limiting the longitudinal movement of thc bar, a movable plate for retaining` the bar 'on said rolls against gravit v, and means for changing the posit-ionof said retainingllate. l

Dated. this lfth day of eptemben 1905. 4

f "'JROME RQGEORGE.

Witnesses! i PnNELoPE CoMBEnBAon, v

RUFUS B. FOWLER; 

